Locking mechanism for revolving gates.



W. J; PIERSON & H. W. LYNCH.

LOOKING MECHANISM FOR REVOLVING GATES.

APPLICATION FILED APR. 17, 191i 1 1 31 Patented Mar. 9, 1915.

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LOOKING MECHANISM FOR REVOLVING GATES.

APPLICATION FILED APR.17,1914.

Patented Mar. 9, 1915.

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W. J. PIERSON & H. W. LYNCH.

LOCKING MECHANISM FOR REVOLVING GATES. APPLIGATIONYFILED APB.17, 1914.

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THE NORRIS PETERS 60., PHOTO-LITHQ, WASHINGTON D L UNITED STATES PAT WILLARD J". PIERSON' AND HARRY W. LYNCH, OF WILMINGTON, DELAWARE.

LOCKING MECHANISM FOR- REVQLVING GATES.

Specification of Letters Patent.

Patented Mar. 9, 1915.

Application filed April 17, 1914. Serial No. 832,594.

To all whom it may concern Be it known that we, WJLLLARD J. PmRsoN and HARRY W. LYNCH, citizens of the United States of America, residing at Wilmington, in the county of New Castle and State of Delaware, have invented new and useful Improvements in Looking Mechanlsm for Revolving Gates, of which the following is a specification.

This invention relates to improvements in locking mechanism for revolving gates and has particular application to a coin controlled locking mechanism.

In carrying out the present invention, it is our purpose to provide a coin controlled lock which will be found especially useful in connection with revolving gates, such as turnstiles, and whereby the stile will be normally locked against movement and released upon the application of a coin of the proper denomination to the locking mechanism, and whereby the stile may be operated to admit any desired number of persons successively according to the number of coins inserted in the machine.

It is also our purpose to provide a locking mechanism of the class described whereby the turnstile will be locked upon completing each quarter revolution thereof in the event of the coins being applied to the machine singly and wherein the coins will be fed to the mechanism of the lock one by one, 1n the event of a number of coins being inserted in the machine, thereby enabling a number of persons to pass through the stile one by one.

Furthermore, we aim to provide a looking mechanism of the type set forth which will embrace the desired features of simplicity, efficiency and durability, which be manufactured and marketed at a minimum expense and which may be readily applied to any type of turnstile or other form of revolving gate.

With the above and other objects in view, the invention consists in the construction, combination and arrangement of parts hereinafter set forth in and falling within the scope of the claims.

In the accompanying drawings; Figure 1 is a top plan view showingour invention as applied to a turnstile. Fig. 2 1s a view in end elevation thereof. Fig. 3 is a horizontal sectional view through the locking mechanism. Fig. 4; is a vertical longitudinal sectional view therethrough. Fig. 5 is avertical transverse sectional view through the same. Fig. 6 is a view similar to Fig. 5 taken on a plane parallel therewith.

Referring now to the drawings in detail, 1 designates a revolving gate which, in the present instance, is in the form of a turnstile rotatable about a vertical axis. Located adjacent to one side of the turnstile and disposed in a horizontal plane is a substantially rectangular casing 2 supported upon suitable pedestals 3 and formed in the front wall of the casing 2, that is the wall adjacent to the turnstile, is a longitudinal slot 4. A locking bar 5 is pivoted between its ends in some suitable manner within the casing and has one end thereof projecting out of the casing by way of the slot 4: and disposed in the path of movement of the arms of the turnstile. The inner end of the locking bar 5 normally abuts a stop pin 6 fastened to the inner face of the rear wall of the casing and such bar is held in engagement with the stop pin by means of a tension device. In this instance, the tension device is in the form of a coiled contractile spring 7 having one end fastened to one edge of the locking bar and the opposite extremity secured to one end wall of the casing, such spring acting to maintain the locking bar 5 in normal position and restore the same to such position succeeding the swinging thereof under the action of the turnstile. Extending into the casing from the rear wall thereof is a pivot pin 8 arranged below the adjacent end of the locking bar 5 and mounted upon the pin 8 is a lever 9 lying parallel with the adjacent wall of the casing and at right angles to the locking bar 5 when the latter is in normal position. Formed on the upper edge of the lever 9 adjacent to one end thereof and disposed in the path of movement of the inner end of the locking bar is a cam 10 adapted to be engaged by the locking bar, in the swinging of the latter, to depress the lever 9. An appropriate form of spring 11 or other tension element has one end secured to the bottom wall of the casing and the opposite end bearing against the lower edge of the lever 9 and acts to maintain the lever in normal position and restore the same to such position succeeding the movement thereof under the action of the locking bar. Extending into the casing from the rear 13 disposed above the lever 9 and locking bar 5 and lying in parallelism with the lever 9 and at right angles to the locking bar. Depending from the lower edge of the lever 13 and confronting the cam 10"is a luglt While projecting downwardly from the lever beyond the lug It is a nose 15 normally engaging the upper edge of the lever 9' beyond the cam 10 thereon and holding the lug 14c normally immediately above the path of movement of the inner end of the locking bar 5. By means of this construction, it will be seen that should an attempt be made to pass through the turnstile the latter will move slightly about its axis and swing the locking bar 5 out of engagement with the stop pin 6 against'the action of the sprlng 7 and onto the cam 10 thereby lowering the lever 9, butin the downward'movement of the leveri9 the lever 13 also drops down, incident to the nose resting'upon the upper edge of the lever 9. Thus, the lug 14: drops into the path of movement of the locking bar 5 and so prevents the latter from moving to'unlo'cked position, thereby holding the turnstile against movement.

The superposed levers 9 and 13 are coin controlled and, in the present instance, a block 16 is formed integral with the pivoted end of the lever 9 and projects toward the adjacent end wall of the casing 1 and the upper surface of such block is cut out to form a channel 17 inclined downwardly from the rear side of the lever toward the front side thereof, while formed on the lower edge of the lever 13 and projecting downwardly from such lever into the channel 17 in the block 16 is a lug 18 having the lower face thereof cut away on an incline as at 19 and lying parallel with the bottom inclined wall of the channel 17. These confronting walls of the channel 17 and lug 18 form, in effect, an inclined slot registering with the lower end of a coin chute 20.

In the present instance, a lug 21 projects downwardly from the'block 16 to limit the swinging movement of the latterand the lever 9 under the action of the spring 11. In practice, should one person desire to pass through the turnstile a coin of proper denomination is dropped into the coin chute 20 and slides into the channel 17 between the bottom wall of the latter and the lug 18. The turnstile is now rotated and in the initial movement thereof the particular arm inengagement with the locking bar 5 swings the latter about its fulcrum whereby the inner end of the locking bar rides into engagement with the cam 10 and so depresses the lever 9 against the action of the spring 11.. In the downward movement-of the le ver 9, the block 16 moves upwardly a short distanceand the coin between the bottom wall of the channel 'in such block and the lug 18 on the lever 13 acts as a connection between the lever 13 and the block thereby maintaining the lever 13 against downward movement, incident to the upper edge of the lever-9 disengagingthe nose 15, whereby the lug 14L is maintained out of the path of the lockingbar 5 so that the latter is free to swing and release the turnstile. Previous to the particular arm of the turnstile disengaging the locking bar the inner end thereof engages the nose 15 and so elevates the upper lever so that the coin within the channel 17 is relieved of the influence of the lug 18 whereby the coin may gravitate out of the channel. Immediately'that the particular arm of the turnstile disengages the locking bar the spring 7 reacts and so restores the locking bar to normal position so that the outer end thereof engages the following arm on the turnstile thereby holding the latter against further movement.

A coin chute 22 projects upwardly throughthe bottom wall of the casing and has one side wallthereof lying against the side of the block 16' forming the lower end of the channel 17 and terminating slightly above thelower end of the channel, and such chute leads into an appropriate form of coin receptacle and-is adapted to receive the coins as the latter are released by the lug 18. Should several coins of proper denominationbe passed into the chute 20, the lowermost coin will be brought to rest Within the channel 17, owing to such coin engaging the stop formed by the adj acentwall of the coin chute 22, while the remaining coins will be brought to a stop by one another. The turnstile is now operated as previously describedand in the upward movement of the block 16' the side wall thereof forming the upper end of the channel 17 moves slightly above thebottom wall of the coin chute 20 thereby holding the coins within such chute against downward movement and permitting the-upper lever 13 to be held stationary as aforesaid. As the coin within the channel is relieved of the influence of the lug 18 as previously set forth, such coin drops into the coin chute 22, While when the parts are restored to normal position, thenext sue ceeding coin slides into the channel 17 thereby permitting the turnstile to be again operated. Thus, any number of persons may pass through the turnstile in accordance with the number of. coins deposited in the chute 20.

A suitable form of counter mechanism 23 is associated with the locking bar 5 so that the number of persons that have passed through the turnstile may be readily determined at any time. The top Wall of the easing 1 is preferably provided with a hinged cover 24 adapted to be locked in closed position.

While we have herein shown and described one preferred form of our invention by way of illustration, we wish it to be understood that we do not limit or confine ourselves to the precise details of construction herein described and delineated, as modification and variation may be made within the scope of the claims without departing from the spirit of the invention.

We claim:

1. A coin controlled locking mechanism comprising a casing, a locking bar pivoted between its ends to one wall of said casing for swinging movement and having one end projecting into the casing and the opposite end extending out of the casing, a lever pivoted upon the opposite wall of said casing at one side of said bar adjacent to the inner end thereof, a cam on said lever disposed in the path of movement of the ad jacent end of the bar whereby the lever may be swung in the swinging of the bar, a sec ond lever pivoted upon the last mentioned wall of said casing at the opposite side of said bar and movable with the first lever, a lug on said lever confronting said cam and adapted to move into the path of said bar to hold the latter against movement to unlocking position, and coin controlled means for holding said last lever stationary whereby the locking bar may swing to unlocking position.

2. A coin controlled locking mechanism comprising a casing, a horizontal locking bar pivoted between its ends to one wall of said casing for swinging movement, a horizontal lever pivoted adjacent to one end to the opposite wall of said casing below said bar, a cam on said lever disposed in the path of movement of the bar whereby the lever may be swung in the swinging of the bar, a second horizontal lever pivoted to the last-mentioned wall of said casing above said bar and movable with said first lever, a lug on said last lever confronting said cam and adapted to move into the path of said bar to hold the latter against movement to unlocking position, a block carried by said first lever beyond the pivoted end thereof and having the upper surface thereof formed with a channel provided with a downwardly inclined lower wall, and a lug formed on the second-named lever and depending therefrom into said channel and having the lower end thereof inclined to conform to the inclination of the bottom wall of said channel to form a coin slot adapted to receive a coin whereby the second-named lever will be held stationary during the movement of the first lever under the action of said locking bar.

In testimony whereof we affix our signatures in presence of two witnesses.

WILLARD J. PIERSON. HARRY W. LYNCH.

Witnesses:

JAMES W. ROBERTSON, ROBERT MoGARvnY.

Copies of this patent 'may be obtained for five cents each, by addressing the Commissioner of Patents,

Wilmington, D. G. 

